| 摘要 |
A non-contact multi-charger is provided to prevent damage of components due to a spark without danger of a fire by performing non-contact charging. A non-contact multi-charger is composed of battery packs charged by induced electromotive force from a non-contact charger(A). The non-contact charger includes a power supply device(100), a current detecting unit(170), a central processing unit(180), a gate driver(160), a half or full-bridge series/parallel resonant converter(120), and a primary side core unit(130). The power supply device is composed of an input power converting unit(111) to receive external power and a voltage control circuit unit(113) to control sizes of output voltage and current of the power supplied from the input power converting unit. The current detecting unit is interposed between the voltage control circuit unit and the half or full-bridge series/parallel resonant converter to output comparison current according to a current change amount. The central processing unit controls the gate driver. The gate driver outputs a gate signal according to control of the central processing unit. The half or full-bridge series/parallel resonant converter controls current and voltage flowing to the primary side core unit according to the gate signal. The primary side core unit generates an induced magnetic field and has first and second cores. The half or full-bridge series/parallel resonant converter has first and second converter blocks. The gate driver outputs signals to the first and second converter blocks by the control of the central processing unit. The current detecting unit detects the signals from the first and second converter blocks. The central processing unit controls the battery packs to be charged by the induced magnetic field generated from the first and second cores.
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